So small caveats, I lied a little. This is the first time I've ever really sat down and analyzed my typing. I do use my ring fingers slightly, on my left hand I use my ring finger for "z" "a" and "q" exclusively, and on my right hand I use the ring finger for backspace exclusively. I also only use my left thumb to hit the space bar and use my right index finger for space when my left thumb isn't available, and don't use my right thumb at all.

I managed to hit 93WPM(really 102WPM if you look, it wouldn't continue until I finished the last word which I didn't notice for quite a few seconds lowering the final time) my first try while holding my phone in my mouth which was a little distracting to be honest, and after about 10 minutes of warming up and not holding the phone managed to get it to 132WPM.

First try at 93WPM - https://gfycat.com/groundedpettyeider Had to cut it to 60 seconds to fit into gfycat, so it starts a little into me already typing but gets the idea across

Last try getting to 132WPM - https://i.imgur.com/r2ecd1Z.png

There was some research that showed people who typed with fewer fingers could be just as fast. However, I am surprised that anyone could achieve 100wpm with no training.